Spero Therapeutics Inc. (SPRO)
NASDAQ: SPRO
· Real-Time Price · USD
1.93
-0.05 (-2.53%)
At close: Aug 15, 2025, 3:59 PM
13F Institute Ownership
Total Institutes of 41 in Spero Therapeutics reduced their positions with a decrease of 11 investors compared to the previous quarter. A reduction of 571.57K shares, as total invested capital declined by $5.27M with ownership percentage dropping from 28.97% to 27.28%.
Options Activity
Institutions are holding more Calls Contracts as Puts Contracts, indicating a bullish sentiment.
Put/Call 0.011
0.01
Call Flow 9,300
99%
Put Flow 100
1%
Top Shareholders
| Institute | Ownership | Shares | Shares % Change | Market Value | Portfolio | Filing Date |
|---|---|---|---|---|---|---|
| Anson Funds Management LP | 6.86% | 3.8M | -1.07% | 2.74M | 0.42% | May 28, 2025 |
| Pfizer Inc | 4.27% | 2.36M | +0.00% | 1.7M | 0.34% | May 13, 2025 |
| Vanguard Group Inc | 3.18% | 1.76M | +0.00% | 1.27M | < 0.01% | May 09, 2025 |
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